P7 ---- P8 ---- P9
            /                   \
    PE1 --- P1 --- P2 --- P3 --- P4 --- P5 --- P6 --- PE2
                                        |  \            |
---->                                  P10  \           |
IP Pkt                                  |    \          |
                                       P11 --- P12 --- P13
                                           100    10000